Lubricating-cup for steam-engines



(Hummel.) E. L'. RBESB.

LUBRIGATING CUP 4FOR STEAM ENGINES.

Patented Oct. 31, 1882n \/\/rrr\1 E E 5 E5 @im M wmf? lUNITED STATES PATENT Ormea.

EVAN L. REESE, OF ALAMEDA COUNTY, CALIFORNIA.

LUBRlCATlNG-CUP FOR STEAM-ENGINES.

SPECIFIC-ATIO'N forming part of Letters'Patent No. 266,885, dated October 31, 1882,

Application filed July 5, 1882. (No model.)

To all whom t may concern.:

Be it known that I, EVAN L. REESE, of Alameda county, State ot' California, have invented an Improved Lubricating Cup for Steani-Eiigines, of which the following is a specication.

My invention relates to those lubricators which operate bythe condensation of steam, which is admitted to an oil or grease reservoir to accumulate in the forni ot' water to displace an equal amount of oil, which flows out and into the steam-passages to lubricate the engine through exitholes provided at the exact level ot' the lubricating material in the reservoir, and which lubricators are provided with adjustable regulating or feed valves.

My invention consists in a novel arrangement of the parts which simplifies the construction, while still securing the feed or regulating plug from being affected by varyingdegrees of temperature, which might otherwise destroy the regularity ofthe supply.

In the accompanying drawing I show a sectional elevation ot a lubricator which fully illustrates the application of my invention.

A is the oil-reservoir or grease-cup, having a charging-hole on top, which is fitted with a screw-plug,B, and a drain cock or valve, C, of any suitable form, placed at the bottom to drain oft' the condensed steam (water) vwhen required.

D is a tube or conduit through which steam flows from the stean1passages ot'theengineinto the oil-reservoir, and through which the oil is in return conducted to the engine. This tube is screwed into the bottom ot' the reservoir at d, there being a heXagon collar at d to take the wrench. The tube passes up through the center ofthe reservoir and out at the top through the stufng'box E, to project above the gland F about an inch. The tube is allowed a free vertical play in this stuffing-box, the packing G being made only tight enough by screwing up the gland F to prevent the escape of steam.

In the tube D, at the top end, is tted the feed-regulating plug H, which has a conical point, which tits a seat provided for it in the tube ath. The top end ot' this plug has the ordinary milled-edge thumb-nut I.

To prevent leakage of steam, a packinggland, J, is provided, which screws up and down on the top end ot' the tube to compress the packing K between the head of the gland and end of tube around the plug. This gland has a heXagon collar atj to take the wrench. The plug H is supported bythe gland J when effits seat, itbeing screwed therein, as shown in drawing.

There are small holes at L, passing from inside. of tube D just above the seat ot' the plug, through which steam enters and oil passes out.

The lubricator is attached to the engine (generally the steam-chest cover) by being screwed thereon, the lower end of the tube D being provided with the ordinary taper screw end for that purpose.

The operation of the lubricator is as follows: Turn the thumb-n ut I to raise t-he end of the plug from its seat, when the steam will flow iu through the holes at L, and will condense in the reservoirand fall to the bottom (water being heavier than oil) and displace an equal amount of oil, which will iiow out through the saine holes into the steam-chest of the engine.

The variation ot'the steam-pressure, and consequent variation otl temperature, will not in any way at't'ect the relative distance ot' the end ot' the plug H from its seat, because the plug gains its support from the gland J, which is directly supported on the end of the tube and moves with it when expansion or contraction occurs, and thus the feed, when once regulated, is permanent at all temperatures, whatever be the variation between the expansion of the tube and reservoir.

What I claim as my invention, and desire to secure by Letters Patent, is as follows:

The herein-described stealn lubricatingdevice, consisting ofthe shell A, tube D, firmly screwed therein at d, and having passages at L, the stuing-box E, plug H, and screw-gland J, the whole arranged and operating substantially as herein described.

EVAN L. REESE.

Witnesses:

GEORGE PARDY, THoMAs H. BARcLAY. 

